Is there a way to change the background color of a scanned PDF file? My PDF show a few black lines, and I am trying to remove them.
You could probably easily change it with a PDF Editor. There are a few open source ones out there, check out this page http://www.cogniview.com/convert-pdf-to-excel/post/pdf-editing-creation-50-open-sourcefree-alternatives-to-adobe-acrobat/